HeaderText of GridView

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Hi,

How can I sort Listbox(1 and 2) Items then Listbox(2) sorted to be header text of columns in gridview after a button is click.

ListBox1 ListBox2
1 aaa
2 bbb
5 ccc
4 eee
6 ddd
3 fff

GridView (column headertext)

aaa bbb fff eee ccc ddd

hope its clear. thanks to provide code.

Posted 20-Aug-14 18:24pm

Member 10943942

Updated 20-Aug-14 19:07pm

v2

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MONU MITTAL 21-Aug-14 0:33am

sort() mathod is called on listbox to sort

Member 10943942 21-Aug-14 0:46am

can you provide what you saying?. I know the sort() thing. but the problem is how?

3 solutions

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MONU MITTAL · Answer 1 · 2014-08-20T18:33:00

Solution 1

Firstly short listbox1 and after that short listbox2 and after that combine them.

Posted 20-Aug-14 18:33pm

MONU MITTAL

Comments

Member 10943942 21-Aug-14 0:46am

If I will combine them the header would be 1aaa 2bbb . . . please provide code behind

MONU MITTAL · Answer 2 · 2014-08-20T20:41:00

XML

<%@ Page Language="C#" AutoEventWireup="true"%>

<!DOCTYPE html>
<script runat="server">
    protected void Page_Load(object sender, EventArgs e)
    {
        if(!Page.IsPostBack)
        {
            List<ListItem> list = new List<ListItem>(ListBox1.Items.Cast<ListItem>());

            //sort list item alphabetixcally
            listlist = list.OrderBy(x=> x.Text).ToList<ListItem>();

            ListBox1.Items.Clear();
            ListBox1.Items.AddRange(list.ToArray<ListItem>());
        }
    }
    protected void ListBox1_SelectedIndexChanged(object sender, EventArgs e)
    {
        Label1.Text = "you selected....<br />";
        Label1.Text += "item: " + ListBox1.SelectedItem.Text;
        Label1.Text += "<br />value: " + ListBox1.SelectedItem.Value;
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>asp.net listbox sort alphabetically</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:MidnightBlue; font-style:italic;">
            asp.net example - listbox sort alphabetically
        </h2>
        <hr width="550" align="left" color="Gainsboro" />
        <asp:Label
            ID="Label1"
            runat="server"
            Text="select an item from ListBox."
            Font-Size="X-Large"
            Width="350"
            >
        </asp:Label>
        <br /><br />
        <asp:ListBox
            ID="ListBox1"
            runat="server"
            AutoPostBack="true"
            Width="350"
            Font-Size="X-Large"
            SelectionMode="Single"
            Height="200"
            OnSelectedIndexChanged="ListBox1_SelectedIndexChanged"
            >
            <asp:ListItem Text="Rufous-tailed Plantcutter" Value="1"></asp:ListItem>
            <asp:ListItem Text="Andean C**k-of-the-rock" Value="2"></asp:ListItem>
            <asp:ListItem Text="Yellow-bellied Elaenia" Value="3"></asp:ListItem>
            <asp:ListItem Text="Grey-hooded Flycatcher" Value="4"></asp:ListItem>
            <asp:ListItem Text="Cliff Flycatcher" Value="5"></asp:ListItem>
        </asp:ListBox>
    </div>
    </form>
</body>
</html>

this example may help you

MONU MITTAL · Answer 3 · 2014-08-20T20:47:00

C#

private void SortListBox()

   {

       ArrayList ListBoxArray = new ArrayList();

       int i = 0;



       while (i < CarNameListBox.Items.Count)

       {

           ListBoxArray.Add(CarNameListBox.Items[i].Value);

           ++i;

       }

       CarNameListBox.Items.Clear();

       ListBoxArray.Sort();

       i = 0;

       while(ListBoxArray.Count > i)

       {

           CarNameListBox.Items.Add(ListBoxArray[i].ToString());

           ++i;

       }

   }

you can also apply this

HeaderText of GridView

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